Method of and means for rolling or forming car-wheels or other circular bodies.



L. F. DIETERA METHOD OF AND MEANS FOR ROLLING 0R FORMINGCAR WHEELS OR OTHER CIRCULAR BODIES.

APPL| CAT|0N FILED NOV. 20. I916.

1,943,052. Patented Oct. 16, 1917.

3 SHEETS-SHEET 1.

WIMBSSES. w mmmmmm.

I. F. 015m.

METHOD OF AND MEANS FOR ROLLING 0R FORMING CAR WHEELS OR OTHER CIRCULAR BODIES.

APPLICATION FILED NOV. 20. I916.

134:3,052w Patented 001;. 10, 1917.

3 SHEETSSHEET 2.

Mi; II LEI/anion L. F. 0mm. METHOD OF AND MEANS FOR ROLLING 0R FORMING CAR WHEELS OR OTHER CIRCULAR BODIES.

APPLICATION FILED NOV. 20. I9I6.

I %M 5X7 Patented Oct. 16, 1917.

3 SHEETS-SHEET 3.

LOUIS :orn'rnn, or

w PATENT d 1 r bs,

BUFFALG, NEW YORK.

METHGD 0F dill?) MEANS F013?) ROLLING 0B FDRIIIING- CAR-WIHEEL$JE OR OTHER CIRCULAR EUDIES.

Specification of Letters Patent.

Eotentedl Oct. 145, ji i'i',

Origins! application filed June 15, 1911 Serial Iio. 633,343. Divided and this application filed November To an whom or? may concern:

Be it known that 1, Louis F. DIETER, a citizen of the United States, residing at 311% fulo, in the county of Erie and State of New Yorlr, have invented novel and useful Met ods of and. Means for Rdlling or Forming Cur-llheels or other Ciiculsr Bodies, of which the following is an s'iiecificstion, eccompouiodby three shcelsbii drawings.

The features of my inrehtion claimed herein ares port ofr the invention of my original opplicotion filed June 15,1911, Serial No 633,343, Whic original application,

' in accord-once with requirements of the Patent (lfiicc, has biyeudividedi his appliestion is o division from said 0. iiml application and, the ports" of an uppulrotusjor; mill shown in the accon'qianying drrtwiup," are illustrative of ports oi? my said original cpplicetion,

The subject matter oithe present invention is also described in and certain features of the invention herein described, butnot herein claimed, are cl uimed in iny application for patent filed June 15, 1,911 Serial No. 633,343, allowedldonuury 23, ililli, of which this application is a division,1cnd this invention is also; described or partly described in and certain features thereof herein described, but not herein claimed, are claimed in the following (Jo-pending applications filed by me, viz: Application for patent filed October 10, 1916, Serial No. 124,923.; appli cation for patent filed November 22, 1916, Serial No. 132,815, and application for potent filed January 10, 1917, Serial No. 141,558.

This invention relates to the manufacture of our Wheels, dislowlieels, or other circular bodies in an economical, commercial, expeditious and ei fi'csoious manner, whereby the whole car Wheel, dish-Wheel, or other circular body may be completely rolled or formed from. a. properly heated ingot, bloom, blonlr, or other Work-piece, including the forming, at the opposite sides oithc worlo piece, of a preliminary bore, or a part or parts thereof, in simple and thoroughly rocticublc manner with the some heat and ie'l orc the finished dished or undished wheel, or other finished body, as the case maybe, is removed from the apparatus or mill, While at the some time securing 2i, uniform moximun'i density and homogeneity in the Serial No. 132,372.

metal which contributes materially to the strength and durability thereof (all of which is fully described in my said original opplioetion) and, this said invention has particuler reference to novel method of and means for supporting the Work-piece end for coolmg the plercers or work-supporting centers or Work-supporting means and worlr-supporting heads which support the Wor -p1ece in an apparatus or mill While the workpiece is being rolled or otherwise operated upon; said method of and means for cooling being absolutely necessary in the continuous'operation of an apparatus or mill such for instance herein described for completely" cular bodiesin accordance with my invenllOi'lllBSClllllfiCl in my said original applied tion and original Will]. applicant.

Another object of my invention is the provision of worlosupporting menus constructed so as topermit of interiorly cooling the some. i I

Another object of my invention is the provision oi Worlrsupporting means con structed so as to permit of exteriorly cooling the some. My invention, among other objects herein described, has also for its object the provision of means capable of drawing sway heat from the Work-piece at its supported region during the rolling or operating process.

Another object is to provide piercers or Work-supporting centers or work-supporting means which are adopted to engage or pierce or penetrate or center a heated work-piece at, one or both sides and support the some While the workpiece is being rolled oropembed on and to so construct said. piercers or centers or supporting means and their that they may be interiorly cooled so as to cool the journals and beuriiig's of said axles and so as to also draw owe-y heat from the workpiece at its supporting region While the work-piece is being rolled or operated upon.

Another object is to provide it WOIk-sllpporting head or heads in which work-sup porting axles are rotatably mounted and to exteriorly cool said work-supporting heads.

Said exterior cooling of the parts of the work-supporting head or heads prevents overheating of the journals and bearings of said axles and heads, and owing to the great area of the exterior faces of the worksupporting head or heads the cooling 1S done in a more effective manner than is possible with internal cooling only. With the cooling system of this invention the machine is in condition to be operated continually at all times, which will be clear from an examination of the drawings.

This invention further contemplates a novelmethod or.proeess of manufacturing car wheels or other circular bodies whereby such bodies or articles may be made in a rapid, continuous, economical and commercial manner; at the same time assisting in. securing a uni form density and homogeneity of the metal in the manufactured article which contributes materially to the strength and durability of the same.

Other objects of my invention are. to pro vide a novel device for cooling the heroin named piercers or work-supporting centers or work-supporting means and their axles to prevent overheating of the ournals and bearings of said axles during the rolling or operating process and for cooling the sur face or surfaces of the center portion of the ingot, bloom, blank or other work-piece in direct'contact with said piercers or worksupporting centers to give to said supporting surfaces in contact with said piercers or Work-supporting centers or \\'orl :-supporting means a greater or harder supporting resistance; a novel device for cooling the herein named worksu 'iporting heads or supporting heads which support said axles With their piercers or work-supporting centers 0r worlesupporting means and the work-piece and also for cooling the journals and bearings oi' thc axles of said piercers or work-supporling centers or work-supporting means and of said work-supporting heads.

The abr)ve-mentioned objects of my invention and others which appear in my aforesaid original application, places the apparatus or mill in condition to bc'opcrated continually at all times, thereby reducing the cost of operation in the manufacture of car Wheels and other circular objects. The production of car wheels and other circular ob ects is thereby greatlycheapened and the output increased.

Further objects of the invention will hereinafter appear.

The invention consists in the novel method or process herein described and more particularly pointed out in the claims; and it also consists in the novel means, in the arrangement of devil-es. in the novel features of construction and in the arrangement and combination of parts herein described and more particularly pointed out in the claims.

In the accompanying drawings, in which 1 illustrate devices or means I prefer to employ in carrying out or practising my invent1on:-

Figure 1 is a plan view and illustrates in a diagrammatic manner that portion of an apparatus or mill embodying my invention, for rolling or forming car wheels or other circular bodies. The piercers or work-sup-, porting centers or work-supporting means in this figure show a workpiece centrally or axially supported thereby and pressure applied equally to'said work-supporting means at opposite sides of the work-piece. The work-piece in this figure is shown centrally pierced or centered by the piercers or worksup iorting centers or work-supporting means and supported thereby and is shown rolled with the one set of the rolls. as shown. Fig. 2 is a similar view showing greater pressure applied to said work-supporting means at one side of the work-piece than at the other thereby dishing the work-piece. The work-piece in this figure is shown completely rolled with all the rolls and dished to the form shown. Fig. 3 is a similar view illustrating said work-supporting means and the rolls moved away from the workpiece and shows the work-piece or finished article ready to be removed from the appa ratus or mill.

4 is a sectional plan view of one of my work-supporting heads showing my invention, the parts carried thereby. and the means for guiding said head for longitudina'l movement. Fig. 5 is a. cross-section of the work-supporting head and the hollow work-supporting axle journaled therein. said section being taken on line 5, Fig. 6. Fig. 6 is a side elevation of the work-supporting head. Fig 7 is a transverse section taken on line 77, Fig. 4, the work-supporting head being shown positioned within its guide which is also shown in t'ansverse sec; tion. Figs. 8 and 9 show the adjustingparts of said guide. Fig. 10 is an enlarged horizontal section through the water cooling or other cooling medium arrangement for the work-supporting axle of my work-supporting head. the'parts at the extreme right being. for the sake of illustration. turned in a. different position than they will have when in operation. Fig. ll is an enlarged section of one of the herein named work-supporting centers or work-sopporting means for form ing dies attached to its axle as shown.

Fig. 12 isa side elevation of part of a pair of myalined work supportingheads. and a workpiece betwcen and supported by said worksupporting artles of said heads: in this figure is also shown the alined guides for said sup porting heads and the portion of the bedeas es plate to which said guides are fixedly se cured: The worlnplece'in, this figure-is shown centrally pierced or centered by said piercers or work-supporting means and supported thereby andready to be operated upon; the dotted lines indicate the center or I hub portion of the workpiece when formed in accordance with my invention as. de

scribed in any said original application.

Fig. 13 is a. cross-section taken through line 13-43, Fig. 12.

Figs, I l, 15 and 16 are diagrammatic views showing for instance a-lew ofsaid pieroers or worksupporting centers or worksupporting means and .work-supportingv heads in position duringthe rollingof inin o; means form shown, it being similar to the illustration thereof shown on a small scalein Fig. 2. in Floj 16 thework-pmce shown in dotted lines 1s a worn car wheel which has been rolled to the form shown by the solid lines and, in this illustration, the piercers or worlt-supporting centers 01;, work-supportor forming dies have the form for instance own in Fig 11, which form is adapted ci ier to reduce, the outer diameter of the hub of the workpiece and the diameter of the bore of said hub, or to enlarge the character of the bore of said huh.

Figs. l7, l8, l9 and 20 illustrate a few more of said piercers orwork-supporting means and also part of said work-supporting (ill axles to which they are secured. and the worlosupporting heads for said axles. 21 shows for instance, a blank (of which is shown the center portion only) in position ready to be pierced or centered with said. piercers or Worksupporting centers or worksupporting means shown in solid lines and it also shows, in dotted lines, said blank pierced. or centered by said piercers or worlesupportingmeans.

This invention, as hereinbeit'ore said, is a division of my aforesaid original application and, the parts of the apparatus or mill shown in the accompanying drawings are illustrative of parts of my said original application. lit is, of course, understood that I do not intend to limit myself to the use of the particular parts shown, as other meansmay hereafter be devised for carrying out my invention or method in a practicable manner.

Similar characters of reference indicate other purpose"? limit to the shapes or forms that said pierccorresponding parts throughout the several views, and also indicate the same corresponding tion. I

B and B are portions of the bedeplate. E, E are partly hollow spindles or axles. provided with my cooling device; these.

axles are the herein named worlsupporting parts in my said original applicaaxle, or axles, which also serve other pur poses; p

E E E E", E and E show, for instance, difi erent shapes of the herein named piercers or work-supporting centers, or

\vorlcsupporting means, or forming; dies and which may alsobfe difierently formed than those herein 'sl lpwn and also to serve There is practically no ers or work supporting centers or worksupporting means or forming dles may have.

F, F and F represent the work-piece froinsome of the many various forms or shapes it may have when put into the apparatus or mill to some of the many various forms or shapes which the finished article or product may have (see my saidoriginal application).

G, G are the roll shafts which have at one of their ends the herein named web finishin; rolls. 1 G and G is, for instance, one set of the herein named finishing rolls. These rolls are laterally movable and are also axially adiustable or movable and are interchangeable and, there is practically no limit to the forms or shapes that these rolls may have.

H is the herein-named tread or face finishmg roll which acts against the peripheral face of the work-piece. This roll is movable. toward and against and also away from the peripheral face of the work-piece. There'is practically no limit to the forms or shapes that this roll may have.

J, J are the roll shafts, each of which has at one pf its'ends one of the'herein named edging and web rolling rolls.

J and J is, for instance, one set of said herein named edging and web rolling rolls.

These rolls are-laterally movable and are also axiallyv movable and are interchangeable and, there is practically no l1m1t to the forms or shapes that these rolls may have. y

K is the herein named tread or face rolling roll which acts against the peripheral. face of the work-piece. This roll is movable toward and against and also away from the peripheral face of the work-piece and it is also laterally movable. 'Like the otherk rolls referred to, there is practically no. 1'25 limit to the may'have. 7

Said picrcers or work-supportin r means forms or shapes that this roll are located one at each side of the blank or work-piece, and preferably revolve with the ,7 work-piece. For instance, during the piersing or penetrating or centering process, said pierccrs or Work-supporting means are moved longitudinally toward or away from each other or are moved as may be desired; and during the dishing process'they are also moved longitudinally with the center or hub portion of the work-piece, wheel or other article. the case may be.

By the words centerin or piercing or penetrating and centering" nsedherein. I mean that, the ingot, bloom. blank or other work-piece is centered. or pierced or penetrated and centered in the apparatus or mill, by forcing either one or both said piercers or work-supporting centers or work-suppm'ting'nieans against or into said workpiece by the pressure means 0 and N as shown in F 1, and, as and in the manner fully described in my aforesaid original application.

M, ,M are the herein named work-supporting heads: although so named they also serve other purposes. as will be observed troin my at'oresaid original application. The axles F. F. are carried and rotatably supported by said supporting heads bl, ivl. Each of these axles l5. l l, has one oi? said herein named piercers or work-supporting centers or work-supporting means for instance i l" or E or F1 or F. or E or E. &c., at one of its ends. These piercers or worksupporting centers or work-supporting means are interchangeable. Said heads M. Til are longitudinally movable and are moved. with their axles E. E and said piercers or work-supporting means for instance'll E or .ll' FF or Fl. Fl". &c., in line with. die axis of the work-piece by means of the pressure cylinders O and N (see Fig. 1) or by any other equivalent means. (lne of said headslvl, M is operatively connected with the piston-rod O of the-piston in cylinder 0 and is moved by the pressure in said cylinder 0. and. the other of said heads M, M is operatively connected with the piston rod X of the piston in cylinder N and is moved by the pressure in said cylinder )3.

ilith reference to Figs. 1. and 3 illustrating the device for centering or for piercing or penetrating and centering ingots, blooms. blanks or other worlepicces, for supporting the same. tor rolling, dishing or nndishing. ori'o'r rolling and dishing or undishing the same. and also for putting the \\'orl(-pie 'es at their hub or center portions while so supported by said work-snpporting means into clamped condition laterally or axially between said piercers or work-supnn-ting means and automatically keeping said hub or center portions in said clamped condition by constant pressurelduring the rolling and dishing or undishing process.

For piercing and centering, for instance, a properly heated blank or work-piece F,

having the form shown in Figs. 12 or 21, the

blank or work-piece F which, in these illustrations, has a thickness which is for instance the same or somewhat greater than the lateral thickness or width which the marginal or rim portion 01'' the -ar wheel or other article is to have when finished, is placed onto a raising. lowering and retaining device my aforesaid original application) and lowered with said device to the positionindicated in Fig. 21, wherein the outer portion or periphery (not shown in, Fig. 9.1) of said blank F will be central,

-or approximately so, with said piercers or \vork-supporting means, which will then be moved by the pressures in said cylinders X and O acting on the pistons of the pistonrods l and O which are opcratively connected with said piercers or woi.'k-su1';porting means, as shown for instance in Fig. 1, to the position shown for instance in the Fig. 21. The total pressure or force will then be delivered to the pistons of said piston-rods X and O to force. t'orinstance, said piercers or centers E, E or any other suitably termed pierccrs or \vorlcsupporting centers, as for instance FR. E tie. into said work-piece F. thus piercing or'pcnetrating or centering the latter to the depth or depths as indicated, for instance, by the dotted lines for said centers E, F) in the Fig. '21, or shown by solid lines, for instance, in Fig. 1-2: or, in case that. the blank or work-piece has a thickness which is the same or somewhat greater than the length which the hub of the car wheel or other article is to have when finished, then in such case the shoulders or flanges of said piercers or centers E, F will come against the sides of the blank or work-piece as for instance shown in the Figs. 1, l-t and 1."). In Fig. 1G is shown, for instance, a pre viously finished or worn car wheel rerollcd to the size and form of F supported for instance by said piercers or centers or 't'orming dies E FF. as shown. These centers or forming dies are forced or placed over the outer diameter of the hub as shown and serve either to reduce or enlarge the diameter ot the bore of the wheel or other article. as may be desired. In Fig. 11, I have shown in enlarged section, one of said pierccrs or centers or forming dies for instance FF, having for instance the form as shown. the piercing or center portion 0 either centrally enters the hole loosely or.

will be centrally forced into the hole or bore oi the work-piece (as shown in Fi 1G). and the annular flange c which is separated lrom said piercing or center portionc by an annular intervening space, is centrally forced over or placed over the outer peripheral part or diameter of the hub of the work-piece, by which process the central hole or bore of, for instance, either previously formed or Worn car wheels, moy

either he reduced or made larger so that the 1 some may be rebored, to the diameter of its original bore or to .o larger diameter.

For inetencofivith reference toi igs. 1, 2 and 8, the rolling or forming" process may begin Viiill the herein named edging and. Web rolling rolls for instance J, Wood tread or face rolling roll K and therewith the blonlz orother workpiece may be rolled to either of hire forms or shapes 5, for in stance, such as shown in the Figs. 1 and or similar forms. In case the finished art-icle should be 111 dished cor Wheel. having the form or shape shown, for instance, in 3 or 1",- the ingot, bloom, blank or other work-piece ho viilg been rolled by the hereinnamed edging and Web rolling rolls, for ins once J J and. the tread or face rolling roll 13:, to the form or shape F in Fig 1 or 14:, and with Said rolls in theposition shown in said Fig. 1 or the rolls J, J may be moved somewhat toward the axis of the WOIlGPlQUB, the herein named Web finishing rollsfor inslonce G tread or face finishing roil H, may begin t finishing op Gl'filllOll against the Work-piece i and ouring" said finishing operation the Wheel may also be dished in "the following manner Willi the workpiece l supported on sold piercers or centers for inst-once E, E and with itsliub or center 1301'l2l011 automatically firmly clamped laterally between said pie core or centers and before the dishing commences, as shown in Fig. 1, the pistonrod'l l of the cylinder N with one or the said work-supporting heads M, M and its said axle E and piercer or center E now under constant and, continuous pressure from said cylinder N, causes the one piercer or center E to press aniomoticzilly and con: tinuonsly toward ondegoinst the hub or center portion of this one side of said Workpiece F and the pistonmod O of the cylindcr O with the other Work-supporting hood M and its l3) and picrcer or center E nowfl also under constant and continuous pressure from the cylinder (3, causes the other pie-nicer or center i i to press cutomaticolly and continuously toward and against the liul) or ceotci." portion of or d Work-piece i? at the other side thereof as shown in Fig. l. Dishing of the Worlopiece then takes plaice, while the Work-piece is rotating end while the marginal or periplernl portion of il1(3 \\"()l'li-])l006 is laterally supported and rotaii'icd by the rolls as shown, in the following i-mmncr: l/Viiilo citlicr, any, or all the driven rolls or all the rolls are in operation, the fires-sure in said cyinder N is grodimlly somowlizit relieved I01- rcdnrcd, retaining. therein however, the

constilnt n-cssuro required in said cylinder N to i'oiziin the aforesaid automat cally clan'lpod condition of the hub or center portion of said Work-piece laterally between said piercers or centers E, E", thereby causing the pressure, or force in the cylinder 0 v to overcome the resistance of theplstomrod finishing and truing up the Work-piece or Wheel to the form or shape shown at F in Fig. 2; or, instead of so reducing the constant pressure in said cylinder N, said dishing can also be done, lvhile the Work-piece is rotating, by increasing the constant pressure in cylinder *0 so as to overcome the comet-zinc pressure in cylinder ll Dining the dishing or rolling and dishing operation, the rim of the Wheel or other article is laterally supported and retained by the rolls, as shown in Fig. 1 or 2. Ali-er the Wheel or other article is completely rolled, dished and finished, the rolls and piercers or centers may be pulled back, as shown in Fig. 3, thereby placing the finished wheel F or other finished article onto the afore said raising, lowering and rciic-ining device, which the finished wire-ell? to position the woi'lc-siip iorci11g means or tlic'rolls or above the apparatus or mill and from there finished Wheel. 1 isicken away by any suitable means and another properly iieaftcd ingot, bloom, blank or ofclier workpiece put in place of it and lowered and. centered, or pierced. or penetrated end cenliered, co, as above described. in. the positions shown in the Fig. 3, the pietorrrods 0", O and N, N and said piercers or con felts E, E are pulled back and the finished Who-cl ll cleared to be removed as above doscrilied.

llndisi ing and rcdisliing nniy be done in a similar manner dishing; in undisliing', the drained object is placed on said piercers or centers rand while so supported can bc moved axially to suit the rolls'and then lindislicd While the obje t revolves.

l ics. to ii incliu-sive slio in deieils one of ihe said r.orlr-snipporitmg heads M, Ni. l 12 ond li-i show the orrzmgcnicnl; of said Work-enppm-ting lieeds ll l, i l-Lille Workpicce in these figures being shown centmlly pierced or ventured by the piei'cers 01' centers 1G, 1*) and ready to be operated upon; the (lofted lines indicating the center or hub portionof i the worlc-picco when formed in :1 :ordnnco with my invention as described in my said original application.

the. cooling water or other cooling medium inlet for said work-su )ortin head M shown in section through H, Fig. (i. Fi 5 is a medium boxes removed.

section through 55, Fig. 6. Fig. 6 is a side elevation. with the plates M and M of one side of the water or other cooling Fig. 7 is a sectional end view of Fig. 6 with lower part in section through 77, Fig. a, also show ing part of the guide bearing M firmly supporting said work-supporting head M. Fig. 8 is a section through 8-S, Fig. l, showing the guide pressure plate N and I wedge adjusting arrangement with'adjusting set screws M Fig. 9 isv a section through 99, Fi .4, showing the guide pressure plate M and wedge adjusting arrangement with the wedge pull back screws i1 Fig. 10 is an enlarged section through the water or other cooling medium arrange ment for the axle E with its piercer or work-supporting center, also showing the parts connected therewith. The work-supporting head M is provided as shown with an eud-plate lv 1 which is firmly bolted to the head M by the screws and nuts M as shown. The said parts M and M also form the supports for'the hearings M, M and ill for the herein named work-s11pporting axle E. Said end plate M alsosupports with its inner end as shown, the ball pressure plate M. Bet een the supporting head M and end plate M the supporting axle E is partly enlarged in diameter over which enlargement is fitted the other'ball 4O pressure plate M Between these two pressure plates 1 and M are placed the halls, M" sulliciently large in diameter and sufficicnt in number to safely resist the pressure during the centering or piercing and. centering process of the ingots, blooms, blanks or other work-pieces and during the lateral clamping process of said work pieces at their huh or center portions between said piercors or centers or supporting means. ain glurii rg the dishing process of the wheel or "other article. These axles l) 1*]. have at one end the said piorcers orrcatcrs or si'pporting means, as l'or instance it. In or iv, l or E. E or F". ll or E, E or E", It, like... as for instance herein shown. l 1ese piurcers or centers or supporting means arc roniovalily 'l'astoned to one end of said axles- .l l, F. by the shoulder and the pins w. a. as shown, or by any other suitable means. Fronrthc other end. each oi said axles l). F. is provided with a. central bore w. as shown which born is enlarged at its open end nd into which is titled a sleeve or pipe piece a forming also a journal with said bore. Said sleeve 0 has its outer diameter near its one end enlarged, as shown at c, and said axle E at its open end has formed a thread 6 over which is fitted a nut e forming with the end of said axle E and with the gland a a regular stuffing box. The pin 6 revolves said gland c with the said axle while said sleeve 0* 1s held against I'BVOlVlll. Said sleeve (3 has fitted thereto at its outer end a T-shaped end connecting-piece 0 provided with the threaded end connecting parts e (2 and e". A. pipe 0 is screwed into the inner end of the connecting part 6 and reaches to a point a short distance of the end out said bore An elbow e is screwed into the outer end of e and connects with pipe o as shown. The end of said sleeve 6' is screwed into the end 6 7 of the connect ing piece 6 and said sleeve 6* surrounds said pipe e and leaves a certain open space between said sleeve or pipe piece 6 and pipe e. The parts 6 and 6 as shown in Fig. 10, are for the sake of illustration turned in a different position than they will have when in operation. \Vhen in opera tion they may have the position shown in the Figs. 4:, 6 and 7. The cooling water or other cooling medium enters at the elbow a at the point indicated by the arrow 6 misses throu h said elbow c and throu h the pipe 1: and then flows in the direction indicated by the arrows 0* around the outside of said pipe 0 into said T-shaped connection piece 0 and from there through the short pipe 6 screwed into the end 6 and into and out through port a and chan nelc" and from there through channels formed by parts of the bed-plate B B and from there is taken away by any suitable means. such as pipes or channels, &c. The axle E with its said piercer-or ,center revolves with the work-piece,"b11t -said sleeve (1" and pipe o with their T-shaped end con-- llttlIlHg piece 0 are held against revolving. To this end said connecting piece (1 is fastened by the bolts 0, e, as shown, to the cross-piece a. which latter is held by the thread and nuts 0", a to the extensions 0 c of two of the said studs M as shown. By the means shown. said worksupporting axles E. E with their piercers or work-sup porting centers or work-sup mrting means for instance E E or E FF. &r. their journals M M" and M and the ball thrust bearing formed by the said parts M", M and M are practically kept cOol and also take part of the: heat away froin the center 0 supporting portion of a heated workpiece to give to the supporting surface or the portion oi the worlopiecc in contact with the supporting centers a greater or harder supporting resistance. The inlet (low of the water or other cooling medium can easily be regulated by a valvotbr the inlet. which 1na he placed near the vlbow U. The cooling water or other cool log medium for the outer sides of the said work-supportiup' hoof M enters, no indicated by the arrow ill, into and through the elbow M and nipple M passing thence into n water or cooling irnediuni chamber or reservoir or box. M which is formed into the upper part oi. said head M with the sides M and M over which are fastened by 1116211155 of screws in the pla es ill M which close the two side-s ot said water or other cooling medium box .l At the lower end of said hon these plates M hil leave openings M", M which extend the total inside width of said. water or other cooling lIlUKlllllll'l be); and through which the cooling water or other cooling medium flows down in contact with the sides, as in dieiitcd by the arrows hil and enters the lower boxes or channels 1 M formed, by and connected with-suid hood ll l by "the purts ll- M, M and Al and. over which are fastened by means of the screws M the plates 1 M as shown. From these lower bones M M the water or other cooling lnflflllliil flows, us iniilicated hythe arrows, into and out througli said port 6 and chunnel and through the lieloresaid channels formed by parts oi. the bed-plate B B and from said last-inei'ltioned channels conducted away by any suitable means such as pipes, channels, etc. By these means shown, ouch of said worlosupporting heads Mt, M-with its heurings and axle nuiy practically he it cool and thus also assist in tuitio art of the aforesaid. head away from the supporting surface ofithe WOL'li-PIGCEB to give sold Sllpfflll'h'lilg surface in contact with said piercers or worlr-supporting centers or \vorlo supporting means a greater or harder supporting resistunce. The inlet flow of water or other cooling medium can easily be roguhi ted by Pt velvctor the inlet M" which may be placed near the elbow M Each of said worlcsupporting hoods M, ll l is also formed at its lower side with u guide or slide block forming bearings at M M 7, M M and M; the sides M iii and M forming the bearings with the guide piece M; the sides M and M formingthe bearings with the guide pressure plate M The bolts M reach through the slotted holes ii in said pressure plate M and press the said guide pressure plate hl'f" against the supporting sides M and M of the guide piece M and when the said bolts M are screwed up, said pressure plate M isrigidly held therewith and practically forms one piece with said guide piece M. A Wedge piece M is placed bctwecn said pressure plate 1 32 and said guide piece M as shown, and with its ver- 1 ticul sideM forms hearing with said plate hi mid with its inclined side M tor ns been innwith suid guide piece hi Set screws M having locl; nuts M as shown lit into topped holes of said prcssure plate M and bear against said wedge piece M as shown. Pull beck screws M with suliiciently long threads M reach through the slotted holes M in said pressure plate M as shown, and. are fitted into tapped holes in said wedge piece M shown. To adjust said guide bearing, the nuts on said bolts M are sulliciently loosened und the screws M backed up and then the wedge piece M forced or moved downward by means of said screws Ill. The nuts on said bolts M uro then screwed up on set up tight, and the screws M again screwed down to prevent the wedge piece M from working downward. These screws M are also placed there for the purpose of pulling the wedge upward in case it has been forced down too much during the ndjustn'ient by the set screws hit.

The said wuric-supporting heads M, M provided with the i E and their said piercers or work-supporting centers or work-supporting menus, for instance E, are located one at each side otthe workpiece as for instance shown in l, 2,73 and 12, and during the rolling process may he fined; but said pierccrs or WOl'li-SUPQOK'P lug centers or worlcsupporting means with. their axles will revolve with the ingot; lJlOUDL, hluuk or other work piece in the said hearings'ott said wink-supporting hoods M, ld, nod, during the piercing or centering, dishing or undishing, rolling and dishing or undisliing processes, sold -work-supporting heads M, M with their axles E, E, and said picrcers or work-supporting centers or work-supporting means, for instance E, E

are moved longitudinally in line with the unis ot' the worlopiece, by means of the pressures in the cylinders O and N (see Fig. I l) or by any other equivalent means, and are so moved. toward or away from each other and may alsmbe moved together in either direction, or one of themmay be repiece, as the case may require and as and in the manner fully described in my aforesaid original zugplicntion. At one side of the work-piece one of said work supporting bends M, M is so moved by the pressure in the cylinder 0, and at the other side of the work-piece the other work-supporting head M is so moved by the pressure in the other I cylinder id as shown.

Each of the snid work-supporting heads tuined in any position while the other is M, M is also formed with a socket part M which receives one end of the piston-rod of its cooperating pressure cylinder. To the part M of said work-supporting head M, shown in detail in Figs. l to 10 inclusive,

r is attached the piston-rod O of the cylinder O by means of the shoulder O and the key 0*, as shown in the Fig. 6. To the part M of the other work-supporting head M at the other side of the worlepiece is attached the piston-rod N of the other cylinder N by similar means, as shown in said Fig. 6.

\Vithreference to the Figs. 1, 2, 3 and at to 13' inclusive, 0 is the .aid pressure cylinder for the work-supporting head M with its axle and said piercer or work-supporting center or work-su 'iporting means located at one side of'the work-piece; and, N is the said pressure cylinder for the other worksupporting head M with. its said axle and said piercer or work-supporting center or work-supporting means, located at the other side of the said work-piece. Cylinder O has a piston with a piston-rod O and a piston-rod 0 passing through the cylinder heads at both ends of the cylinder 0 (see Fig. 1). The piston-rod O is provided at its outer end with the said shoulder O and key t) and is firmly held'thercby and connected with said work-s11 )porting head M, as shown in l igs. G and 7. The details and description of the pressure cylinder N and its connecting parts for said other worksupporting head M at the other side of the work-piece, are similar to those described above and fully described in my aforesaid original application. The said piercers or work-supporting centers or work-supporting means, for instance E, E, with their work-supporting heads M, M are moved longitmlinally and operated by the means of said cylinders N and O with their pistonrods N N and 0 as and in the mannor described in my aforesaid original alpplicatron.

"here in the s ecilicati m and claims the words ingot, bloon'nor blank are used, it is intended to mean the work-piece to be operated upon, and the word work-piece is used herein in a broad sense and is intended to include aningot, bloom, blank, car wheel, or any other unfinished or completely linished circular, or approximately circular or other shaped object adapted to be rolled, rel'ollcd, reworked or reformed -or otherwise operated UI')OU..GliLl1(.I to entirely change its shape, otwonly partly change its shape or outline, or to change its dimensiims in whole, or part as desired. In other words work piece means any object to be operated upon.

, 'lhe hereinshowin and described method of and means l'or supporting the workpiece and for ooling the said. picrcers or worksupporting means, the worksupporting axles and the work-supporting heads enables the work-piece to be centrally pierced or penetrated and rotatably supported in a rapid manner without becoming loose on its supporting means and by reason of which a rapid, continuous and economical operation of the work-pieces will result therefrom; and at the same time a uniform density and ho- -mogeneity of the metal in the finished vcooling the supporting means during the rolling or operating process, also the means for carrying out my method of drawing away heat from the work-piece at its supported region during the rolling .or operating process to give to said supporting surfaces of the work-piece a greater and harder supporting resistance, it is, of course, understood that I do not wish to be confined to the exact construction herein shown and described, and that my method may be carried out in various other ways; also'that apparatus or means other than herein shown and described may be provided without departing from the spirit of my invention or sacrificing any of the advantages thereof.

The features of my invention herein described are not all claimed herein, but such features not herein claimed are covered by claims within my aforesaid originalapplication and within applications filed by me and having the hereinbefore mentioned serial numbers and filing dates.

I claim as my invention 1. The herein described method of cooling the work-supporting means in an apparatus or' mill for rolling .or forming car wheels or other circular bodies, which consists in interiorly and in exterioriy cooling said supporting means.

2. The herein described method of cooling the work-supporting means in an apparatus or mill for rolling or forming car wheels or other circular bodies, which eonsists in causing a cooling medium to circulate through the interior of the central rotating portion of said wt r|esuppoxting means.

ii. The method of cooling the means for supporting a heated work-piece during the rolling or operating process in an apparatus or mill for rolling or forming car wheels or other circular bodies, which consists in applying a cooling medium to the end portion or portions of the work-supporting means adjacent; the work-piece without having said cooling medium come in direct contact with the work-piece.

4. The method of cooling the rotating part or parts, otthe means supporting a heated workpiece during the rolling or operating process, which consists in interiorly cooling the rotating part or parts of the Work-supporting means adjacent the Workpiece.

5. The method of cooling the hollow axles or supporting means which centrally support a heated work-piece during the rolling or operating process in an apparatus or mill for rolling or forming car Wheels or other circular bodies, which consists in introduc ing a circulating cooling medium into said hollow axles or supporting means to retain the ends thereof applied to the work-piece in a cooled. condition.

6. The herein described method of cooling the Wmic-supporting means in an apparatus or mill for rolling or forming car wheels or other circular bodies, which consists in causing a cooling medium to flow over and in contact with the exterior surfaces or-exterior portions of .d supporting means.

7. The herein described method of cooling the Worlosupporting means in an apparatus or mill for rolling or forming car wheels or other circular bodies, \vhich conin. causing a cooling medium to circulate through the interior ol the central. and rotating portion of said supporting means, and in causing a cooling medium to I flow over and in contact with exterior surfaces or exterior mrtions of said supporting means.

The i'uetliod. of cooling the \vo1-l -sup-. porting devices havii'ig means engaging'the central portion of a heated Worn-piece and sap iortiag the same during the rolling or o iierating process in an apparatus or mill for rplliug or forming car Wheels or other circular bodies, which consists in interiorly cooling the engaging means of said devices, and in exteriorly cooling said devices.

3. The method of cooling the Woi'k-supporting devices having means engaging a heated Work-piece during the rolling or operating process in an apparatus or mill for rolling or forming car Wheels or other circular bodies, which consists in causing a cooling medium to circulate through the luterior of the engaging means of said devices ad acent. the workpiece, and in causing a cooling medium to flow over and in contact with exterior surfaces or exterior portions of said device I 10. The herein described method of cooling the Work-supporting means in auappa- ,v

"rolhng ,or formlng said Work-piece into a ratus or mill for rolling or forming car Wheels 01' other circular bodies, which consists in causing a cooling medium to circulate through the interior of the central portionof said supporting ing a coolingmediiun to the exterior portion or portions of said $1111 porting means. i

means, and in causflow in contact Wlth' ed Work-piece during the rolling or operating process in a mill for rolling or forming ar Wheels or other circular bodies, which consists in directing or feeding a cooling medium interiorly to the inner end or ends of said axle or axles adjacent the workpiece and from there cause said cooling medium to flow back through the interior and out of said axle or axles. I

13. The method of cooling the Work-sup porting device or devices having a hollow,

axle or axles provided with means at the end or ends to engage a heated Work-piece during the rolling or operating ,process, which consists in directing or feeding a cooling medium interiorly to the inner end or ends of said axle or axles adjacent said end means or adjacent the Work-piece and from there cause said cooling medium to flow back through the interior and out of said axle or axles, and in causing a cooling medium to flow over and in contact with the exterior surfaces or exterior portions of said Work sup'porting device or devices.

14. T he method of cooling the work-supporting devices having means to engage a heated Work-piece during the rolling or operatingprocess, which consists in interior-1y cooling the work-engaging ends of the engaging means of said devices. 1 15. The method of cooling the Work-supporting device or devices having end-means to engage a heated Work-piece during the rolling or operating process, Which consists in. intcriorly cooling the work-engaging ends of the engaging means of said devices, and, in causing a cooling medium to flow over and in contact with exterior surfaces or exterior portions of'said device or devices.

16. The'method of partly cooling or taking away part of the heat from thecenter or supporting portion of a heated Workpiece 'while the same is centrally engaged by supporting means during the operation of car Wheel or other'eircular body, which consists in applying a cooling medium to the heat away from the central or supporting workpiece.

portion of a heated work-piece while the same is centrally supported and is being rolled or operatedon, which consists in interiorly cooling the end portions of the supporting means centrally supporting the l8.- The imethod of centering or piercing or penetrating a heated work-piece, which consists in moving or forcing a pair of alined piercing, or worlcsupporting axles having piercers or work-supporting means at adjacent endsagainst the work-piece, in

v applying piercing or centering pressure against said axles to cause said piercers or work-supporting means to pierce or pene' trate or center the work-piece and to cause the metal thereof replaced by said piercers or work-supporting centers to flow into another part of the work-piece, and in cooling said piercing or work-supporting axles from the interior. i

19. The method of centering or sizing the outer or peripheral hub portion of a heated work-piece having a central hub whereon said work-piece is adapted to be supported andfor cooling. or taking part of the heat away from the hub or supporting portion of the Work-piece during the rolling or operating process while the same is so supported, which consists in moving or forcing a pair of alined and-oppositely-arranged forming or work-supporting devices over said hub portion, and in cooling said forming or work-supporting devices.

20. The method of centering or sizing the outer or peripheral. hub portion of a heated,

work-piece having a central hub, and rotatably supporting said work-piece on its said outer or peripheral hub portion while the work-piece is being rolled or operated upon, and for cooling or taking part of the heat away from the hub or supporting portion of the work-piece while the work-piece is supported and is being rolled or operated upon, which consists in moving or forcing 'a pair'of alined and oppositely arranged forming or work-supporting devices over sald hub portion and supporting the work- ;piece during the rolling or operating process, and in cooling said devices and thereby drawing heat away from said hub or supporting portion of the work-piece while the work-piece is so supported, thereby providing, during the rolling or operating process,

a greater or harder supporting resist.:,: :e .at the supporting portions of the workpiece engaged by said forming or work-supporting devices.

' 21. The method of rolling or forming {oarwheels or other circular bodies from heated ingots, blooms, blanks or other workpieces, which consists in applying axles or work-supporting means centrally to the 1 piece to support the 'same, in cooling anaaxles or supporting means, and in apin a cool condition, and in applying rolling means against the so supported work-piece to roll or form the same to desired form or shape. l 23. IThe method of rolling or forming circular articles from heated ingots, blooms, blanks or other work-piece's, which consists in applying axles or supporting means centrally to the work-piece to support the same, 1n cooling said axles or supporting means at the end portions adjacent the work-piece,-

and in applying rolling means against the workpiece to roll or form thesame into, desired form or shape.

24. The method. of rolling or forming' circular objects from heated ingots, blooms, blanks or other work-pieces, ,which consists in centrally and rotatably supporting the work-piece, in partly cooling the center or supporting portion of the work-piece, in applying rolls against the work-piece, to roll or form the same into desired form or shape.

25. The'method of rolling or forming circular objects trom heated ingots, blooms, blanks or other work-pieces, which consists in placing the work-piece between two alincd work-supporting devices having cen ters or piercers or work-supporting means,

in therewith engaging the central portion of r the work-piece, in interiorly cooling the centers or piercers or work-supportingmeans of said devices, in exteriorly cooling said devices, and in applying rolls against the work-piece to roll or form the same into desired form or shape.

26. The method of rolling or forming circular objects from heated ingots, blooms, blanks or other work-pieces and of cooling or taking away part of the heat from the center or supporting portion of the work-piece ,while the same is centrally supported and is being rolled or operated on, which consists in placing the work-piece between two alined worlcsupporting dcviceshaving centers or piercers or work-supporting means at adjacent ends adapted to engage the central portion of the work-piece, in interiorly coolingv the centers of said-devices, in exteriorly cooling said devices, and in applying rolls against the work-piece to roll or form the same into desired form or shape.

27. The method of .rolling or forming a heated. object into acar Wheel, disk-Wheel or other circular form or shape, which consists 1n centrallysupporting the ob ect, in

partly cooling, the center or supporting pereach of said heads having tion ofsa id object, in applying rolls against saul ob ect toroll or term the some into acar Wheel, disk-Wheel or other circular form or shape.

29. The method of cooling or taking away pa rt of the heat from the center or supporting portion of a heated Work-piece While the same is cent "ally supported and is being rolled. or formed into car Wheel or other circular body, which consists in placing the Work-piece between two Work-supporting devices having centers engaging the central portion of the workpiece, in. interiorly cooling the centers of said devices terioi'ly cooling said devices.

30. In an apparatus or null for rolling or and in eX -it'oruu'ug car Wheels or other circular bodies,

means for centrally and rotatably supporting a work-piece in. a position immovable in the direction of a line at right angles with the axis of the Work-piece, and means for cooling said supporting means.

.31. In an apparatus or mill forrolling or forming car Wheels or other-circular bodice, :1 pair of alined and axially movable worlc-sup mrting heads arranged at opposite sides of a Work-piece, alined work-supporting axles in said heads adapted. to support a Work-piece therebetween, and means for cooling said axles.

32. in an apparatus or mill for rolling or forming car Wheels or other circular bodies, means for centrally and rotatably sup porting a Work-piece, and means for internally cooling the ends of said supporting means adjacent the Work-piece.

33. In an apparatus or mill for rolling or forming car Wheels or other circular bodies a pair of rotatably journaled and alined hollow worlosupporting axles adapted to support a Work-piece therebetween, and means for interiorly cooling said rotating 3%. lo an apparatus or mill for rolling or forming ear Wheels or other circular bodies,

a pair of alined Work-supporting heads arranged at opposite sides of a workpiece, a wo'rlcsupporting. axle rotatably mounted in its axis coincident 'iyith the axis of the workpiece, said Worksupporting faxles being adapted to support the Work-piece thercbetween, and means for cooling. said axles.

vices operatively connected 35. In an apparatus 0: mill for rolling or forming car wheels or other circular bodies, a supporting head arranged at one side of a Work-piece and provided with a dishing or Worlcsupporting axle in line With the axis of the workpiece and rotatably supported in said supporting head, said axle being adapted to support the workpiece, and means for cooling said axles.

36. In an apparatus or mill for rolling or forming ear wheels or other circular bodies. a supporting head longitudinally movable, a power or pressure device connected with said head for moving the same, a dishing or Worlosupporting axle in line With. the axis of the Work-piece and rotatably mounted in said head, saidaxle being adapted to support a. Work-piece thereon, and means. for cooling said aXle.

' 37. Inan apparatus or mill for rolling or forming car Wheels or other circular bodies, the combination With alined guide pieces thereon, of a. supporting head longitudinally movable in each of said guide pieces, a power or pressure device op a support having eratively eonnectedivith each of said heads for moving the same longitudinally, alined piercing or Work-supporting axles rotatably mounted in said. heads and adapted. to support a. work-piece therebetween, and means for cooling said axles.

38. In an apparatus or mill for rolling or forn'ling car wheels or other circular bodies, apair of alined supporting heads arranged opposite side of a work-piece, alined hol low or partly hollow piercing or Work-sup porting. axlesrotzitably supported in said heads and adapted "to support the Workpiece therebetween, and means for inter-- nally cooling said axles.

39. In an apparatus or mill for rolling r forming car Wheels or other circular bodies; a pair of alined hollow or partly hollow piercing or Work-supporting axles arranged to support a Work-piece therebetween, and means for internally cooling said axles.

40. In an apparatus or mill for rolling or forming car Wheels or other circular bodies, a hollow or partly hollow dishing ,or Worksupporting axle arranged to centrally supports Work-piece thereon, and means for internally cooling said axle.

41.. In an apparatus or mill for rolling .01 forming car Wheels or other eircular bodies, a pair of alined supporting heads arranged at opposite sides of a Worlopieee and longitudinally movable, power or pressure de- With said heads to move the same longitudinally, alined hollow or partly hollow ivm lesupporting axles rotatably mounted in said heads, and means i means for moving said elements toward and from each other to engages work-piece pothe combination with a support havingalined guide pieces. of a work-supporting head longitudinally movable in each of said guide-pieces, power or pressure devices connected with said heads for moving the same longitudinally, alined hollow piercing or dishing or work-supporting axles rotatably mounted in said heads. and means for internally cooling said axles, said axles having p'iercers or work-supporting means at adjacent ends to engage and support a workpiece therebetween,

45. In an apparatus or mill for rolling or forming car wheels or other circular bodies, a pair of alined and axially movable worksupporting heads arranged to support a work-piece therebetween. and means for externally cooling said work-supporting heads.

46. In an apparatus or mill for rolling or forming car wheels or other circular bodies, a dishing or wOrksupporting head arranged at one side of a work-piece to support the same, and means for externally cooling said dishing or work-supporting head.

47. In an apparatus or mill for rolling or forming car wheels or other circular bodies,

a supporting head arranged at one side of a work-piece, a dishing or worltsupporting axle in line with the axis of the work-piece, said axle being rotatably mounted in said work-supporting'head and adapted to support the, work-piece, and means for. externally cooling said work-supporting head.

48. In an apparatus or mill for rolling or. forming car wheels or other circular bodles,

a pair of alined work-supporting heads arranged at opposite s des of a work-piece and longitudinally movable, power or pressure.

devices connected with'said heads for moving the same, piercing or work-supporting axles rotatably mounted n said heads and adapted to supporta workpiece therebetween, and means for externally cooling said work-supporting heads.

, 49. Inan apparatus or mill for rolling or forming car wheels or'other circular bodies, the combination with a support having alined guide pieces, of a work-supporting.

head longitudinally mow-ablein each of said guide pieces. means for moving said heads a hollow or partly hollow dishing or work-- supporting axle a1; 'anged to support a workpiece, and a feed pipe for a cooling medium arranged centrally within said axle and separated from the wall thereof by an intervening space, and an outlet for said intervening space for the escape of the cooling medium.v

, 51. In an apparatus or mill for rolling or forming car wheels or other circular bodies, a pair of hollow or partly hollow piercing or work-supporting axles arranged to support a work-piece therebetween, and a feed pipe for a cooling medium arranged centrally within each of said axles and separated from the wall thereof by an intervening space, each of said intervening spaces having an outlet for the escape of the cooling medium;

52. In an apparatus or mill for rolling or forming car wheels or other circular bodies, a pair, of alined hollow axles arranged to support a work-piece therebetween, each ,axle having one end open and its other end closedqand a feed pipe for a cooling medium extending into each axle from its open end to a point near its closed end and having its innerend open, said feed pipes being arranged centrally within said axles and separated from the walls of the latter by annular intervening spaces, and an outlet at the open end of each of said axles for the escape of the cooling medium from the axle.

53. In an apparatus or mill for rolling or forming car wheels or other circular bodies. the combination with a support, of a pair of work-supporting heads arranged in ali'nement and longitudinally movable on. said support, power or pressure mechanism for moving said heads longitudinally, hollow piercing or worlosupporting axles arranged in alinement and having piercing or forming or work-supporting means at adjacent ends, said axles being rotatably mounted in said heads and. with their piercingor formmg or work-supporting means being adapted toform, or pierce, or penetrate, and support a work-piece situated therebetween, and a feed pipe for a cooling medium arranged centrally within each of said axles and separated trom the wall thereof by an intervening space,,each of said intervening spaces having an outlet for the escape of the cooling medium. l

54. In an apparatus or mill for rolling or forming car wheels or other circular bodies, the combination with a support, of a pair of intense or wtair-supporting axles rotatable in the bearings of said heads and having piercers or work-supportinp; means at adjacent ends, said axles being hollow from one end and having enlargements between their ends bearing against said sl'loulders, anti-friction thrust hearings between said enlargements and said end plates, a sleeve fitted into each of said axles at their hollow ends, a stuliing box applied to each axle at the hollow end through which. said sleeve extends, and feed pipes for a cooling medium passing through said sleeves and entering said axles, said feed pipes being separated from the Walls of said sleeves and axles by intervening spaces through which the cooling medium passes after escaping from said feed pipes.

55. In an apparatus or mill for rolling or forming ear wheels or other circular bodies, the combination of a pair of worksupporting heads arranged in alinement,

each head having a longitudinal bore enlarged at one end to provide a chamber, piercing or work-supporting axles rotatable in the bores of said. heads and adapted for action against a Worl -piece situated between the adjacent ends thereof, said axles having enlargements between their ends bearing against one of the Walls oi said chambers, thrust bearings between said enlargements and the opposite walls of said chambers, and feed pipes for a cooling, medium arranged centrally Within said axles and separated from the Walls thereolby intervening spaces for the passage of the cooling medium therethrough.

56. In an apparatus or mill for rolling or forming ear Wheels or other circular bodies, the combination of alined worlesupportim5 heads arranged for longitudinal movement,

each head having a longitudinal here there in, piercing or ,Work-supporting axles rd tatable in. the bores of said heads and adapted to have a workpiece situated therebetween, stuilinp; boxes applied to the distant ends oi said axles, a sleeve fitting" into each of said axles and extending: through the stalling box thereof, and feed pipes for a cooling medium passing through said sleeves and entering said axles, said teed pipes being separated from the walls of said sleeves and axles by intervening spaces for the passage of the cooling medium therethrough.

5?, In an apparatus or mill For rolling or forming car wheels or other circular bodies, a piercing or dishiug or work-supporting head arranged in alincment' or approxiunatcly in alinement with the axis of a Work-piece, and means for feeding a cooling medium to said head and causing the same to flow in contact with the sides of said head.

58. In an apparatus or mill for rolling; or forn'iing car wheels or other circular bodies, a pair of alined work-supporting heads arranged at opposite sides of a work-piece, and means for feeding a cooling medium to said heads and causing the same to flow in contact with the sides of said heads.

In an appa atus or mill for rolling or forming car wheels or other circular bodies, a pair of alined Werk-supporting heads arranged at opposite sides ofa workpiece and longitudinally movable, each of said heads being provided at its upper end with a reservoir or cham ier for a cooling, medium having outlets to cause the cooling medium to flow iItCOlii-flCi? with the sides of said heads,

60 In an apparatus or mill for rolling or forming car wheels or other circular bodies, the combination with a support, of a pair of worlesupporting heads ar'anged in alinemeet and longitudinally movable on said support each of said heads being provided at its upper end with a reservoir or chamber for a cooling mcdirun, said reservoirs or chambers having outlets to cause the cooling medium to flow in contact with the sides of said heads, and troughs at opposite sides of each head at points beneath saio. outlets to receive the cooling medium after passing in contact with the sides of the head.

(31. in an apparatus or mill. for rolling or forming car Wheels or other circular bodies, a piercing, or dishing or woi'lr-supporting head alincd or approximately ailined with the axis of a workpiece, a hollow piercing: or dishing or \vork-supporting axle in said head adapted to support a mark-piece, means for feeding a cooling medium to id head and mu ing the sa to liow in the f r. 33 2, in an ap tmratiis or will for rollinp; 0:

forming ear whee or other circular bodies, a: supported work-sirpporting head, a wort:- simportiug' axle rotatable in said head and adapted to support a work-piece, means for cooling said workrsupportiup; head, and means for cooling said .vorl su )porting axle.

63. in an apparatus or mill for rolling or forming car wheels or other circular bodies, a supported work-s11pporting head, a hollow axle in said head, means for feeding a cooling medium to said work-supporting head. to cool the same, and means for internally cooling said axle.

(Ed. in an apparatus or mill for rolling or forming car Wheels or other circular bodies, a Workeupporting head, a hollow axle rocontact with e same, i

I sides of a workpiece with their adjacent end-means, means for feeding a cooling me dium to said work-supporting heads and causnig the same to flow in contact with the vsides ofthe samefland means for-internally cooling said axles.

66. In an apparatus or null for rolling or forimng car wheels or other circular bodies,

.a pair of alined work-supporting heads, a

piercing or work-supporting axle in each of said-heads, said axles having forming dies, or piercing or workksupporting means at adjacent ends adapted to support a workpiece t-herebetween, means for externally cooling said work-supporting heads, and means for internally cooling said piercing or work-supporting axles.

67. In an apparatus or millfor rolling or forming car wheels or other circular bodies, the combination with a support, of a pair of work-supporting heads arranged in alinement on said support. an axle rotatable in each of said heads, said axles having pierc ing orwo rk-supporting means at adjacent ends adapted to support a work-piece therebetween. means for feeding a cooling medium to said heads and causing the same to flow in contact with the sides thereof. means for internally cooling said axles, and a power or pressure device or devices to move saidavork-upporting heads toward and from each other, or together simultaneously iirtlie same direction.

(38."IT1 an apparatus or mill for rolling or forming ca r wheels or other circular bodies, a piercing or dishing or work-supporting head having a' longitudinal bore formed therein, a hollow piercing or dishing or work-supporting axle rotatable in said bore, and means for leading a cooling medium to the exterior of said head and to the-interior of said axle.

69. In an apparatus or mill for rolling or forming car wheels or other circular bodies. a pair of alined work-s1lpporting axles. each of said axles having a liquid or cooling medium receiving space therein. and means for Feeding a cooling medium to said space.

T0. In an apparatus or mill for rolling or forming car wheels or other circular bodies. a pair of alined worlcsupporting axles having piercers or \\'ork-su iporting centers or 'Work-supporting means atadjacent ends adapted to receive a work-piece therebetween, each axle having a hollow space at said adjacent ends, and means for conducting a cooling medium to said hollow spaces.

71. In an apparatus or mill of the kind, described, a pair of alined work-supporting heads, each having a longitudinal bore formed therein. a hollow or partly hollow work-supporting axle rotatable in each oi] said bores, and means for leading a cooling agent to the exterior'of said heads and "to the interior ofsaid axles.

72; In an apparatus or mill of the kind described, a pair of alined work-supporting. heads longitudinally movable, each having.

site ends of the same, piercing or Work-' supporting means at one of the extending ends of said axles adapted to engage oppositesides of a. workpiece, a thrust bearing to receive the pressure of said axles when t'orciblv applying them w'th their piercing or work-supporting means to the work-piece,

and' means for internally cooling said axles at the ends having said piercers or worksupporting means thereon,

' 7a. In an apparatus or mill for rolling or forming ear wheels or other circular bodies, the combination .with a support having spaced and aimed guides, a work-supporting head longitudinally movable in each of said guides and having a longitudinal bore therein, a hollow \vm'k-supporting axleirotatable in each of said bores, means for leading a;

cooling medium to the exterior of said heads, and means for leading a cooling medium to the interior of said hollow axles.

75.. In an apparatus or mill for rolling or forming. car wheelsor other circular bodies, the combination with a support having a guide, a work-supporting head; longitudinally movable in said guide and having a longitudinal bore therein, a power or pressure device connected with said head for moving the same longitudinally, a hollow work-supporting axle rotatable in said bore, means for leading a cooling agent to the exterior of said head, and means for leading a. cooling agent to the interior of said axle.

76. In an apparatus or mill for rolling or forming car Wheels or other circular bodies, a pair of alined worlesupporting axles having female centers or forming dies at adja- I lower ends of the cent ends for centrally supporting a workpiece at opposite sides, power or pressure means operatively connected to each worksupporting' axle for moving said axles longitudinally in the same direction when dishlng said work-piece and for moving said axles toward each other or moving one of said axles toward the other for forcing said centers or forming dies over the hub or center portion ofthe work-piece for compressing the hub to make its outer diameter and the diameter of its bore smaller, rolls adapted to act against the work-piece to form or roll the same as and where desired and to later ally support and retain the marginal or peripheral portion of the work-piece while moving said axles with the center or hub portion of the work-piece together in the same direction to dish theiwork-piece, and means for partly cooling or" taking away part of the heat from the center or supporting portion of the work-piece engaged by said centers or forming dies.

77. In an apparatus or mill for rolling or forming car wheels or other circular bodies, a work-supporting head having an opening extending transversely through its upper end, and a bore arranged lengthwise in a plane beneath said opening, a work-supporting axle rotatable in said bore, plates secured to opposite sides of the head to close said opening, means to supply a cooling medium to said closed opening, and means to permit the cooling medium to escape from said closed opening and flow in contact with the sides of the Work-supporting head.

78. In an apparatus or mill for rolling or forming, car wheels or other circular bodies, a work-supporting head having an elongated opening arranged through theupper end of said head, a work-supporting axle journaled in said head in a plane beneath said open ing, said head being reduced in thickness directly beneath said opening, plates applied to the sides of said head to close the sides of the said opening and .torm a chamber, the plates being arranged at the reduced portion of said head to provide escape passages for said chamber, and means for feeding a cooling medium to said cham-.

ber, said escape passages permitting the cooling medium to flow downwardly in contact with the sides of said head.

79. In an apparatus or mill for rollingor forming car wheels or other circular bodies, a Work-supporting head having a longitudinal bore therein and a reservoir or chamber for a'cooling medium above said bore, said reservoir or chamber being provided with an inlet for the cooling medium and with an outlet or outlets to permit the cooling medium to escape therefrom and flow downward in contact with the side or sides of said head.

80. In an apparatus or mill for rolling or forming car wheels or othercircular bodies, a work-supporting head having a longitudinal bore therein and a reservoir or chamber for a cooling medium above said bore, a hollow or partly hollow axle or supporting means rotatable in said bore, said reservoir or chamber being provided with an inlet for the cooling medium and with an outlet or outlets to permitthe cooling medium to escape therefrom and flow downward in contactewith theside or sides of said head, and means for leading a cooling medium to and from the interior of said axle.

81. In an apparatus or mill for rolling or forming car heels or other circular bodies, a work-supportinghead having a longitudinal bore therein and a reservoir or chamber for a cooling medium above said bore, said reservoir or chamber being provided with an inlet for the cooling medium and with outlets to permit the escape of the cooling medium therefrom so that it may flow downwardly in contact with the sides of said head, ledges at opposite sides of the head in a plane beneath the longitudinal bore, plates secured to the ledges to form troughs to receive the cooling medium after flowing in contact with the sides of the head and an outlet in communcation with said troughs.

In testimony whereof, I have hereunto set my hand. LOUIS F. DIETER.

Witnesses:

E. M. SGHWEIGER,

E. J. MEYER. 

